ARM: shmobile: irqpin: add a DT property to enable masking on parent (c4fa4946) · Commits · 戴 / test

To disable spurious interrupts, that get triggered on certain hardware, the irqpin driver masks them on the parent interrupt controller. To specify such broken devices a .control_parent parameter can be provided in the platform data. In the DT case we need a property, to do the same. Signed-off-by:

Guennadi Liakhovetski <g.liakhovetski@gmx.de> Acked-by:

Magnus Damm <damm@opensource.se> Signed-off-by:

Simon Horman <horms+renesas@verge.net.au>

Documentation/devicetree/bindings/interrupt-controller/renesas,intc-irqpin.txt

+2 −0

Original line number	Diff line number	Diff line
		@@ -12,3 +12,5 @@ Optional properties:
		properties
		- sense-bitfield-width: width of a single sense bitfield in the SENSE register,
		if different from the default 4 bits
		- control-parent: disable and enable interrupts on the parent interrupt
		controller, needed for some broken implementations

drivers/irqchip/irq-renesas-intc-irqpin.c

+5 −2

Original line number	Diff line number	Diff line
		@@ -348,11 +348,14 @@ static int intc_irqpin_probe(struct platform_device *pdev)
		}

		/* deal with driver instance configuration */
		if (pdata)
		if (pdata) {
		memcpy(&p->config, pdata, sizeof(*pdata));
		else
		} else {
		of_property_read_u32(pdev->dev.of_node, "sense-bitfield-width",
		&p->config.sense_bitfield_width);
		p->config.control_parent = of_property_read_bool(pdev->dev.of_node,
		"control-parent");
		}
		if (!p->config.sense_bitfield_width)
		p->config.sense_bitfield_width = 4; /* default to 4 bits */

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